Abstract

Artificial immune systems, more specifically the negative selection algorithm, have previously been applied to intrusion detection. The aim of this research is to develop

an intrusion detection system based on a novel concept in

immunology, the Danger Theory. Dendritic Cells (DCs) are

antigen presenting cells and key to the activation of the human immune system. DCs perform the vital role of combining

signals from the host tissue and correlate these signals with proteins known as antigens. In algorithmic terms, individual DCs perform multi-sensor data fusion based on time-windows. The whole population of DCs asynchronously correlates the fused signals with a secondary data stream. The behaviour of human DCs is abstracted to form the DC Algorithm (DCA), which is implemented using an immune inspired framework, libtissue. This system is used to detect context switching for a basic machine learning dataset and to detect outgoing portscans in real-time. Experimental results show a significant difference between an outgoing portscan and normal traffic.

Item Type:

Conference or Workshop Item
(Paper)

Schools/Departments:

University of Nottingham UK Campus > Faculty of Science > School of Computer Science